The Shenzun Tunnels is a part of Kaineng City that lies close to ground-level, close to the dirty sewage that drains from other parts of the city. It is likely that the extremely poor would reside here, concentrated mostly in the northern areas and in the center. The Am Fah have a presence here, concentrated mostly on the southwestern and northeastern corners - a result of the Afflicted having taken over the other parts.

Sometimes the vanquish won't be complete even after you kill everything in the area. In this case, run to all the portals. Occasionally a group of foes walks through it to disappear and you can get the reward as you approach the portal.